[openstack-dev] [Heat] rough draft of Heat autoscaling API

Angus Salkeld asalkeld at redhat.com
Fri Nov 15 01:40:49 UTC 2013

On 14/11/13 10:19 -0600, Christopher Armstrong wrote:
>I've thrown together a rough sketch of the proposed API for autoscaling.
>It's written in API-Blueprint format (which is a simple subset of Markdown)
>and provides schemas for inputs and outputs using JSON-Schema. The source
>document is currently at
>Things we still need to figure out:
>- how to scope projects/domains. put them in the URL? get them from the
>- how webhooks are done (though this shouldn't affect the API too much;
>they're basically just opaque)
>Please read and comment :)

Hi Chistopher

In the group create object you have 'resources'.
Can you explain what you expect in there? I thought we talked at
summit about have a unit of scaling as a nested stack.

The thinking here was:
- this makes the new config stuff easier to scale (config get applied
   per scaling stack)
- you can potentially place notification resources in the scaling
   stack (think marconi message resource - on-create it sends a
- no need for a launchconfig
- you can place a LoadbalancerMember resource in the scaling stack
   that triggers the loadbalancer to add/remove it from the lb.

I guess what I am saying is I'd expect an api to a nested stack.


>IRC: radix
>Christopher Armstrong

>OpenStack-dev mailing list
>OpenStack-dev at lists.openstack.org

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